Accession Number:

ADP000009

Title:

Fatigue and Fracture Evaluation of the A-7E Arresting Gear Drag Link,

Descriptive Note:

Corporate Author:

VOUGHT CORP DALLAS TX

Report Date:

1982-09-01

Pagination or Media Count:

18.0

Abstract:

The primary objective of this program was to establish a proof load criteria for the A-7E drag link that is comparable to that of the hook shank. Twenty-three drag links were tested under realistic load and environment 3.5 salt solution conditions. Critical locations, fatigue lives, residual strength and crack growth rates were determined and a proof load criteria was developed and verified. Even though a proof load criteria comparable to that of the hook shank could not be obtained, this technique used the crack growth data and nondestructive inspection NDI capabilities. An interval identical to that of the hook shank was found which gave a high probability of flaw detection. Vought recommended this second option as the most economic and efficient method of inspection. This paper describes the results of a test and evaluation program conducted for the Naval Air Systems Command. Author

Subject Categories:

  • Terminal Flight Facilities
  • Metallurgy and Metallography
  • Test Facilities, Equipment and Methods
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE